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Nutrition Reviews

Head to head · Amino Acids (BCAA & EAA)

Kion Aminos Essential Amino Acids Powder vs Nutricost EAA Powder

Nutricost scores higher overall (7.0 vs 6.3 out of 10), mainly on value and experience. Kion still leads on efficacy.

Updated October 2026 from our full reviews · How we score

Front of the Kion Aminos Mixed Berry powder tub, 7.0 oz
KionAminos Essential Amino Acids Powder
6.3
Poor

A fully disclosed EAA powder with 5 g of all nine essential amino acids and 2 g of leucine per scoop, sweetened with stevia, at about $1.67 a serving.

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Higher score
Front of Nutricost Performance EAA, Blue Raspberry, 30-serving (330 g) tub
NutricostEAA Powder
7.0
Mixed

A budget EAA powder at about $0.67 a serving that includes all nine essential amino acids, but 6 of its 8 g are BCAAs and several others are only token amounts.

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The short answer

Choose Kion if…

  • Older adults and dieters who struggle to eat enough protein
  • People who want a fully disclosed, caffeine-free amino drink between meals
  • Vegans looking for a leucine-rich essential amino acid supplement
  • You care most about efficacy

Choose Nutricost if…

  • Budget buyers who want a flavored amino drink
  • Sipping during training when a protein shake isn't practical
  • Vegetarians who want a meat-free amino acid supplement
  • You care most about value, experience

Key differences

Biggest scoring gap
Value: Nutricost 8.0, Kion 4.6. This factor covers cost per effective serving compared with category peers.
Independent testing
Neither carries an independent certification we could verify, such as NSF, USP or Informed Choice.
Flavors
Kion comes in 4 flavors, Nutricost in 5.
Dietary labels
Only Kion is labeled vegan and sugar-free. Only Nutricost is labeled vegetarian.

Side by side

Aminos Essential Amino Acids PowderEAA Powder
Our score6.3 / 107.0 / 10
Efficacy (30%)6.45.8
Quality & Purity (25%)7.27.0
Value (20%)4.68.0
Experience (15%)6.48.0
Transparency (10%)7.27.5
FormPowderPowder
Serving1 Scoop (6.60g)30 servings per container1 scoop (11 g)30 servings per container
Price per serving$1.67See retailer
Testing & certifications
Third-party testedcGMP facility
Third-party testedcGMP facility
DietaryVegan, Non-GMO, Gluten-free, Sugar-freeVegetarian, Gluten-free, Non-GMO
Key ingredients
  • L-Leucine2,000 mg
  • L-Lysine HCl, L-Isoleucine, L-Valine, L-Threonine850 / 550 / 500 / 475 mg
  • L-Phenylalanine and L-Methionine350 / 200 mg
  • L-Histidine and L-Tryptophan71.5 mg / 3.5 mg
  • Stevia leaf and monk fruit extracts
  • BCAAs 2:1:1 (instantized)6,000 mg
  • L-Lysine HCl and L-Threonine800 mg / 690 mg
  • L-Phenylalanine, L-Histidine, L-Tryptophan, L-Methionine350 / 100 / 50 / 10 mg
Flavors4 (Mixed Berry, Cool Lime, Mango…)5 (Fruit Punch, Blue Raspberry, Peach Mango…)
Creator video reviews52

Pros and cons

Aminos Essential Amino Acids Powder

  • Every amino acid dose is disclosed, including 2,000 mg of leucine per scoop
  • No sugar, caffeine, artificial sweeteners or artificial colors
  • Leucine-enriched design mirrors mixtures tested in small human trials
  • About $1.67 per 5 g serving, more per gram of essential amino acids than whey
  • No named third-party certification for drug-tested athletes
All 8 pros and cons

EAA Powder

  • About $0.67 per serving, among the cheapest EAA powders
  • Lists all nine essential amino acids with a fully disclosed label
  • 4.7 stars from roughly 890 buyer ratings, with taste widely praised
  • 6 of 8 g are BCAAs; methionine is only 10 mg
  • Less complete than the same money spent on protein powder
All 8 pros and cons

Our verdict: Kion vs Nutricost

Nutricost is the stronger product overall, 7.0 to 6.3 in our scoring, ahead on value and experience. Each full review shows the evidence, testing and buyer feedback behind these scores.

Full Aminos Essential Amino Acids Powder review Full EAA Powder review

What creators say

Questions people ask

Is Kion better than Nutricost?
In our scoring, Nutricost EAA Powder rates higher overall (7.0 vs 6.3 out of 10). Kion leads on efficacy; Nutricost leads on value and experience. Scores weigh efficacy, quality, value, experience and transparency.
Who should choose Kion over Nutricost?
Our reviews suggest Kion is best for older adults and dieters who struggle to eat enough protein, people who want a fully disclosed, caffeine-free amino drink between meals and vegans looking for a leucine-rich essential amino acid supplement, while Nutricost is best for budget buyers who want a flavored amino drink, sipping during training when a protein shake isn't practical and vegetarians who want a meat-free amino acid supplement.
What is the difference between Kion and Nutricost?
Neither carries an independent certification we could verify, such as NSF, USP or Informed Choice. Kion comes in 4 flavors, Nutricost in 5. Only Kion is labeled vegan and sugar-free. Only Nutricost is labeled vegetarian.

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